Carbon-paper.



W. L. WEST.

CARBON PAPER. APPLICATION FILED AUG. 6, 1908.

91 0, 887. Patented Jan. 26, 1909.

Wihmaaea I 1 k atkwnug UNITED STATES PATENT OFFICE.

WILLIAM L. WEST, OF FRANKLIN, PENNSYLVANIA.

CARBON-PAPER.

To all whom it may concern;

' Be it known that 1, WILLIAM L. Wnsr, citizen of the United States, residing at Franklin,in the county of Venango and State of Pennsylvania, have invented certain new and useful Improvements in Carbon-Paper, of which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to improvements in carbon paper, the preparation of which, and the composition for coating same are herein fully set forth, and illustrated in the accompanying drawings in which Figure 1 shows a plan view of the carbon paper and Fig. 2 is a section thereof.

Similar numerals refer to similar parts in both views. f a

My im roved carbon paper is produced as follows: first coat the paper 1 with an impression-yielding composition 2, composed of.

printers copying ink 70 per cent., glycerin 10 per cent, spirits of turpentine 1O 'er cent., spirits of cam hor 10 per cent, whic may be applied to file paper by any approved method. lmmedlately after the application of said coating, before the same has become set or dried, I apply upon said coating a thin coating 3 of fine y powdered soa ,-prefer ably white castile soap, though I 0 not wish to be understood as confining myself specifically to this particular kind of soap." After, my impression-yielding coating has been a phed to the paper, it is of substantially t e Specification of Letters Patent.

Application filed August 6, 1908.

Patented Jan. 26, 1909.

Serial No. 447,341.

'ceous film over the same.

Having thus described my invention, what I claim and desire to secure by Letters Pat ent, is-

v 1. A carbon paper havin a thin coating of finely powdered soap over ying the impression-yielding substance.

2. A carbon paper having an impressionyielding coating, and a saponaceous coating overlying said impression-yielding coating.

3. A carbon paper having an impressionyielding coating consisting of a compound of printers copying ink, glycerin, spirits of turentine, and spirits of cam hor, and a coating of finely powdered castl e soap overlying sald first mentioned coating.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM L. WEST. Witnesses:

ROBERT N. SPEER, E. R. INMAN. 

